Ship construction



R. S. CHEW.

SHIP CONSTRUCTION. APPLICATION mzo JULY 29. I918.

1,330,517. Patented Feb. 10,1920.

1% Mentor Ilia/lard S. Chew flaforney UNITED sTAT s PATENT oEEIoE.

RICHARD S. CHEW, OF SAN FRANCISCO, CALIFORNIA.

SHIP CONSTRUCTION.

a citizen of the United States, residing at the city and county of SanFrancisco and a State of California, have invented new and usefulImprovements in Ship Construction, of which the following is aspecification.

This invention relates to a ship construction.

It is the principal object of this invention to provide a ship structurewhich will be reinforced to resist the various sea actions, and thuspermit ships to be built of larger capacity, and yet possess necessarystiffness and strength.

By the present invention the structure is reinforced in such a mannerasto efliciently resist any of the sea actions that might tend to distortit, 'as the triangular bulkheads will act to prevent hogging, sagging,torsion or twisting. This construction further provides that the hull ofthe ship will be subdivided into numerous compartments, a large numberof which might be punctured without placing the ship in distress.

The present invention contemplates the use of a ship of timber, steel,or reinforced concrete construction, and, which is formed with a hull ofany predetermined design reinforced by a pluralitv of diagonalbulkheads. which are arranged transversely of the ship and crosswise ofeach other.

The invention is illustrated by Way of example in the accompanyingdrawings in which- Figure 1 is a plan view disclosing the arrangement ofthe bulkheads and the prote ted position of the engine room and boilers.

Fig. 2 is a view in transverse section further illustrating theconstruction.

Referring more particularlv to the drawings, 10 indicates the hull of aship. This hull may be of anv design, and may be formed of any desiredmaterial. In the present instance it is indicated as of timberconstruction. The height of the ship here shown permits the use of a topdeck 11, a middle deck 12 and a lower deck 13. These de ks are supportedby timbers 14. The top deck is fitted with a series of hatchways 15, whih are here shown as divided in quarters, the separating line being drawnfrom corner to corner diagonally.

In the usual ship construction it is com- Specification of LettersPatent.

Application filed July 29, 1918. Serial No. 247,108.

mon to extend the bulkheads laterally of the ship and in parallelrelation to each other. In the present instance this structure iseliminated, and a series of diagonal bulkheads 16 utilized. The diagonalbulkheads emanate from corresponding points on the opposite sides of thehull and cross each other midship to form a series of rectangularcompartments 17 supplemented by triangular compartments 18. Othercompartments of irregular shape will be formed at the prow and bow ofthe vessel. In this manner a series of inclosed compartments will occurthroughout the length of the vessel, and triangular compartments will beformed at the sides thereof. The compartments A may inclose the engineroom, while the compartments B may be fitted with boilers. This willvirtuallv surround the vitals of the ship with a double wall, the innermembers of which are inclined, and would act to deflect any projectileor other puncturing member struck thereagainst.

The hatchways are positioned directly over the center of the vessel, andare of sufficient dimensions to allow access to each of the fouradiacent compartments surrounding the hatch.

The bulkheads 16 are formed with a set of doors 19, which occur at thepoint of crossing of the two partition walls. which may he slid upwardlvt provide a passageway directly through the various compartments.

In operation it will he noted that the diagonal bull headsare reinforcedto truss the hull ofthe ship a ainst local pressure tending to crush thehull. Furthermore. it will be observed that when the hull is subie tedto a hogging or sagging action the bulkheads will reinforce the entireship structure longitudinallv, and relieve it from the detrimentaleffects incident to such strains. As the various compartments are sealedduring the transit of the ship, it would be possible for certain of thesmall triangular compartments to he punctured without placing the vesselin distress.

While I have shown the preferred form of my invention, it will beunderstood that various changes in the construction, combination andarran ement of parts will be made by those skilled in the art withoutdeparting from the spirit of the invention as claimed.

Having thus described my invention, What I claim and desire to secure byLetters Patent is:

1. In a ship structure, a hull, and diagonal bulkheads extendingcontinuously and uninterruptedly from side to side of the hull andintersecting each other, said bulkheads being Vertical and extendingfrom deck to deck LO form a series of sealed compartments along each ofthe ships sides.

2. In a ship structure, a hull, and diagonal bulkheads extendingcontinuously and uninterruptedly from side to side of the hull andintersecting each other, said bulkheads being Vertical and extendingfrom deck to deck to form a series of sealed compartments along each ofthe ships sides each bulkhead being formed With a pair of openingsadjacent and extending outwardly from the point of intersection of thebulkheads,whereby to provide four divergent openings for adjacentbulkheads extending "from a common center, and doors for closing therespective penings.

In testimony whereof I have hereunto set my hand in the presence 01-"tWo subscribing Witnesses.

RICHARD s. CHEW.

Witnesses W. W. HEALEY, M. E. EWING.

